#pragma once

#include "iostream"
#include "vector"
#include "algorithm"

using namespace std;

/*HJJ QQ479287006
 *编写一个函数，其作用是将输入的字符串反转过来。输入字符串以字符数组 s 的形式给出。

不要给另外的数组分配额外的空间，你必须原地修改输入数组、使用 O(1) 的额外空间解决这一问题。

 

示例 1：

输入：s = ["h","e","l","l","o"]
输出：["o","l","l","e","h"]
示例 2：

输入：s = ["H","a","n","n","a","h"]
输出：["h","a","n","n","a","H"]

来源：力扣（LeetCode）
链接：https://leetcode.cn/problems/reverse-string
著作权归领扣网络所有。商业转载请联系官方授权，非商业转载请注明出处。
 * */

void reverseString(vector<char> &s) {


    int low = 0;
    int high = s.size() - 1;

    while (low <= high) {

        swap(s[low++], s[high--]);


    }


}